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Eduardwww [97]
3 years ago
13

Solve the equation -2.6b + 4 = 0.9b - 17

Mathematics
1 answer:
Soloha48 [4]3 years ago
6 0
If you are solving for b:
-2.6b+4=0.9b-17 <subtract 4 from both sides
-4 -4
-2.6b =0.9b-21 <subtract 0.9b from both sides
-0.9b -0.9b
-3.5b = -21 <divide by -3.5
--------- ------
-3.5 -3.5

b=6
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nadezda [96]

Answer:

57.0 cm

Step-by-step explanation:

We know that the radius of the filament is 1 mm. Taken to cm, is 0.1 cm.

From the density and mass, we can get the volumen of the bangle:

d = m/V ----> V = m/d

Solving for V:

V = 25 / 14 = 1.79 cm^3

We can assume that a bangle is a cylinder so:

V = π*r^2*h

1.79 = 3.14 * 0.1^2 * h

h = 1.79 / 3.14 * 0.01

h = 57.0 cm

5 0
3 years ago
What line would be parallel to 8x-2y=7 with a point of 12,1​
SOVA2 [1]

Answer:

y = 4x - 47

Step-by-step explanation:

Equation of a line:

The equation of a line has the following format:

y = mx + b

In which m is the slope and b is the y-intercept.

Parallel lines:

When two lines are parallel, they have the same slope.

8x-2y=7

Placing into the format, we have thtt:

2y = 8x - 7

y = 4x - \frac{7}{2}

Slope of 4.

This means that the desired line has the following equation:

y = 4x + b

Point of (12,1)

This means that when x = 12, y = 1

We use this to find b.

y = 4x + b

1 = 48 + b

b = -47

So, the line has the equation:

y = 4x - 47

7 0
3 years ago
Write the equation of the graphed in NO SPACES ALL LOWERCASE<br> Help !!
cupoosta [38]

Answer:

The equation of the graphed line is:

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Step-by-step explanation:

From the graph, it is clear that the line is a horizontal line at y = 2.

We know that a horizontal line has a slope of 0 because the value of y does not change no matter what the value of x we put in.

In other words, the equation of the horizontal line would always get the form:

y = k

where k is the y-intercept of the line.

Determining the y-intercept of the line:

We know that the value of the y-intercept can be determined by setting x = 0 and determining the corresponding value of y.

From the graph, it is clear

at x = 0, y = 2

Thus, the y-intercept k = 2

Thus, if we substitute the y-intercept k = 2 in the equation y = k, we get the equation

y = 2

Therefore, the equation of the graphed line is:

  • y = 2
6 0
3 years ago
What is the slope of the line? 4x - 1 = 3y + 5
MissTica
You need to isolate y. When you do, will get y=(4/3)x-2. When the equation is in this form, you can see that the slope is 4/3
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